3318628236 has 144 divisors (see below), whose sum is σ = 10190073600. Its totient is φ = 816531840.

The previous prime is 3318628199. The next prime is 3318628241. The reversal of 3318628236 is 6328268133.

It is a happy number.

It is a super-2 number, since 2×3318628236² = 22026586737552943392, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 328590 + ... + 338538.

It is an arithmetic number, because the mean of its divisors is an integer number (70764400).

Almost surely, 2^3318628236 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3318628236, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5095036800).

3318628236 is an abundant number, since it is smaller than the sum of its proper divisors (6871445364).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3318628236 is a wasteful number, since it uses less digits than its factorization.

3318628236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10012 (or 9991 counting only the distinct ones).

The product of its digits is 248832, while the sum is 42.

The square root of 3318628236 is about 57607.5362778170. The cubic root of 3318628236 is about 1491.6016942845.

The spelling of 3318628236 in words is "three billion, three hundred eighteen million, six hundred twenty-eight thousand, two hundred thirty-six".